1000 Base-T uses all pairs for bidirectional traffic in the RJ45 connector. Cables used should be of Category 5e(nhanced), even though Category 5 cables usually works too.
 (at the network interface cards/hubs)
 (at the network interface cards/hubs)
 (at the cables)
 (at the cables)
RJ45 FEMALE CONNECTOR at the network interface cards/hubs.
RJ45 MALE CONNECTOR at the cables.
| Pin | Name | Description | 
|---|---|---|
| 1 | BI_DA+ | Bi-directional pair A + | 
| 2 | BI_DA- | Bi-directional pair A - | 
| 3 | BI_DB+ | Bi-directional pair B + | 
| 4 | BI_DC+ | Bi-directional pair C + | 
| 5 | BI_DC- | Bi-directional pair C - | 
| 6 | BI_DB- | Bi-directional pair B - | 
| 7 | BI_DD+ | Bi-directional pair D + | 
| 8 | BI_DD- | Bi-directional pair D - | 
| Contributor: | Niklas Edmundsson, | 
| Source: | IEEE Std 802.3, 2000 Edition | 
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  Document last modified: 2002-01-10